JP2007315721A - Cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cause no baking unevenness without making difference in the degree of baking both upper and lower faces of objects to be heated in an upper stage and a lower stage. <P>SOLUTION: A blow-up plate 111 having a reflecting surface 111a is disposed directly below a steam supply passage 23B1 in an inclined plate 110 of a steam blowoff part 102. Steam flowing along the inclined plate 110 is thus blown up by the reflecting surface 111a of the blow-up plate 111 to heat and cook an object to be heated on a tray in the upper stage from both front and rear sides together with superheated steam from a top steam blowoff port. Steam flowing along the inclined plate 110 toward the front (the door side) and the rear of the blow-up plate 111 is blown off as it is downward to the front and downward to the rear to wrap the object on a rack in the lower stage to heat and cook it. In two-stage cooking, the baked degrees of both upper and lower sides of the object in the upper stage and the object in the lower stage are thereby almost the same to cause no baking unevenness. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cooking device that cooks food using steam.

  Conventionally, as a cooking device that performs two-stage cooking using a hot air circulation method, there is one disclosed in JP-A-1-260219 (Patent Document 1). In this cooking device, an upper heater and a hot air circulation fan are provided at the top of the heating chamber, and a flat heater unit is provided at the bottom of the heating chamber. In addition, a two-stage rail is provided on the side wall of the heating chamber, and the upper rail supports the snow core, while the lower rail supports the iron plate dish.

  In the above configuration, in the oven mode of the two-stage heating cooking, the hot air generated by the upper heater is blown out from the exhaust port provided in the upper wall of the heating chamber into the heating chamber by the hot air circulation fan. The bottom surface of the cake placed on the upper stage and the upper surface of the cake placed on the lower stage are heated by passing along the upper side of the cake. On the other hand, the lower iron plate dish is heated by the rise in heat generated by the flat heater unit, and the bottom surface of the cake placed on the lower stage is heated by the iron plate dish.

  However, in the heating cooker that performs the conventional two-stage heating cooking disclosed in Patent Document 1, the hot air from the upper heater that flows along the side wall of the heating chamber and passes through the upper scoomi is in the lower stage. Although the top surface of the placed cake is easily reached, it is not easy to go around the bottom surface of the cake placed on the upper stage.

As a result, there is a problem that a difference occurs between the baking of the upper and lower surfaces of the cake placed on the upper stage and the baking of the upper and lower faces of the cake placed on the lower stage, and there is a problem that a burning spot occurs.
JP-A-1-260219

  Therefore, an object of the present invention is to perform cooking that does not cause a difference in baking between the upper and lower surfaces of the article to be heated and that does not cause burning spots, even during one-stage cooking or two-stage cooking. Is to provide a vessel.

In order to solve the above problems, the heating cooker of the present invention is:
A steam generator for generating steam;
A heating chamber for heating an object to be heated by steam supplied from the steam generator;
A steam outlet provided on both side walls of the heating chamber, and having a steam outlet for blowing steam supplied from the steam generator toward the heating chamber;
A steam supply passage for supplying steam from the steam generator to the steam outlet,
The steam blowing section includes a blowing direction separating means for separating the blowing direction of the steam supplied from the steam supply passage into at least two directions, that is, an upper direction and a lower direction.

  According to the above configuration, when the steam is blown out from the steam blowing portion provided on the both side walls of the heating chamber toward the heating chamber, the blowing direction of the steam is changed in two directions, upper and lower, by the blowing direction separating means. Separated and blown out. Accordingly, the steam blown upward and downward from both sides of the heating chamber collides with each other in the central portion of the heating chamber, and convection occurs. For this reason, the object to be heated in the heating chamber is heated almost uniformly from the surroundings, and there is no difference in the amount of baking between the upper and lower surfaces, and no burnout occurs.

Moreover, in the heating cooker of one embodiment,
The blowing direction separating means is configured to separate the blowing direction of the steam supplied from the steam supply passage into three directions of upper, lower front, and lower rear.

  According to this embodiment, the steam is blown out from the steam blowing portions provided on the both side walls of the heating chamber, with the blowing direction being separated into three directions of upper, lower front, and lower rear. Therefore, the steam blown out from both sides of the heating chamber collides with each other in the central portion of the heating chamber, and more complicated convection is generated than in the case where the vapor is blown out in two directions, upward and downward. As a result, the heating on both the upper and lower surfaces of the article to be heated becomes more uniform, and the spots are further reduced.

Moreover, in the heating cooker of one embodiment,
The ceiling panel is provided on the top surface of the heating chamber and provided with a plurality of ceiling steam outlets for blowing out steam supplied from the steam generator downward,
A first heated object holding material for holding the first heated object is disposed in the middle in the vertical direction of the heating chamber, while a second heated material is disposed in the lower vertical direction of the heating chamber. A second object-to-be-heated holding material for holding an object is disposed;
The steam blowing portion is disposed below the first heated object holding material and above the second heated object holding material.

  According to this embodiment, the first heated object on the upper first heated object holding material and the second heated object on the lower second heated object holding material are cooked simultaneously. At the time of stage cooking, the first heated object located in the upper stage is disposed below the steam blown from the plurality of ceiling steam outlets of the ceiling panel and the first heated object holding material. Since it is heated by the steam blown upward from the steam blowing portions on both sides, the baking on both the front and back surfaces of the first heated object is substantially the same, and no spots are generated. On the other hand, the second object to be heated located in the lower stage is encased by steam blown downward from the steam blowing parts on both sides arranged on the upper side of the second object to be heated holding member. The baking on both sides of the second object to be heated is substantially the same, and no spots are generated.

Moreover, in the heating cooker of one embodiment,
The steam outlet is
The top plate in which the steam supply passage is connected and the steam supply hole communicating with the steam supply passage is formed;
Inclined so as to face the top plate and the steam outlet, and is configured to include an inclined plate that changes the direction of the flow of steam from the steam supply hole to the direction toward the steam outlet,
The blowing direction separating means is disposed immediately below the steam supply passage in the inclined plate of the steam blowing portion, and reflects the steam flowing down along the inclined plate so as to be directed upward in the horizontal direction. A blast plate having a reflective surface is included.

  According to this embodiment, the steam supplied from the steam supply passage to the steam blowing part flows down along the inclined plate of the steam blowing part. And the vapor | steam reflected so that it might go upwards with respect to a horizontal direction with the reflective surface of the blowing board arrange | positioned directly under the said vapor | steam supply path is blown upwards from the said vapor | steam blower outlet. On the other hand, the steam that has flowed down the front side of the blowing plate along the inclined plate is blown out downward and forward from the steam outlet. Further, the steam that has flowed down the rear side of the blowing plate along the inclined plate is blown out rearward and downward from the steam outlet.

Moreover, in the heating cooker of one embodiment,
The blowing direction separating means closes the steam outlet and is provided below the first opening and the reflecting surface provided at a predetermined distance above the reflecting surface of the blowing plate. And a steam outlet plate formed with a second opening.

  According to this embodiment, out of the steam reflected by the reflecting surface of the blowing plate disposed immediately below the steam supply passage, the first is provided above the reflecting surface of the blowing plate by a predetermined distance. Only the steam reaching one opening is blown upward. Of the steam flowing down the front or rear side of the blowing plate along the inclined plate, only the steam reaching the second opening provided below the position of the reflecting surface is blown downward. . In this way, the steam blown out from the steam blowing section is reliably blown up and down.

Moreover, in the heating cooker of one embodiment,
The first opening and the second opening in the steam blowing plate are configured by an array of a plurality of holes.

  According to this embodiment, the blown out steam is throttled to increase the flow rate of the steam. Furthermore, a decrease in strength of the steam blowing plate can be suppressed.

Moreover, in the heating cooker of one embodiment,
A front end portion of the steam supply passage is inserted into the steam blowing portion and bent toward the heating chamber in the steam blowing portion,
The blowing direction separating means includes a direction separating member that is inserted into the tip portion of the steam supply passage and separates the steam blown from the tip portion into three directions of upper, lower front, and lower rear. Yes.

  According to this embodiment, the steam supplied from the steam supply passage is divided into the upper, lower front, and lower rear by the direction separating member at the distal end bent toward the heating chamber in the steam outlet. It is separated in three directions and blown out in each direction.

Moreover, in the heating cooker of one embodiment,
A front end portion of the steam supply passage is inserted into the steam blowing portion and bent toward the heating chamber in the steam blowing portion,
The blowing direction separating means is formed by dividing the tip portion of the steam supply passage, and has a first passage extending upward and a second passage extending downward and forward. A passage and a third passage extending downward and rearward are included.

  According to this embodiment, the steam supplied from the steam supply passage is a first passage formed by dividing the tip portion at the tip portion bent toward the heating chamber in the steam blowing portion, By the second passage and the third passage, the air is blown out in three directions, that is, upper, lower front, and lower rear.

  As is clear from the above, when the steam is blown out from the steam blowing portion provided on both side walls of the heating chamber toward the heating chamber, the cooking device of the present invention uses the blowing direction separating means to blow the steam. Is separated and blown out in at least two directions, ie, upward and downward, so that the steam blown upward and downward from both sides of the heating chamber collides with each other in the central portion of the heating chamber to cause convection. Therefore, the object to be heated in the heating chamber can be heated substantially uniformly from the surroundings, and the difference in baking between the upper and lower surfaces can be eliminated and the unevenness can be eliminated.

  In addition, a ceiling panel having a plurality of ceiling steam outlets for blowing downward the steam supplied from the steam generator is disposed on the top surface of the heating chamber, and the steam outlet is connected to the heating chamber. Two-stage cooking if arranged below the first heated object holding material disposed in the middle stage and above the second heated object holding material disposed in the lower stage of the heating chamber. At the time, the first heated object on the first heated object holding member positioned in the upper stage is steam blown from the ceiling panel, and the steam blown upward from the steam blowing parts on both sides It can be heated by heating and the burning on both sides of the front and back sides can be made substantially the same to eliminate the burning spots. Further, the second object to be heated on the second object to be heated holding member positioned in the lower stage can be wrapped by steam blown downward from the steam blowing parts on both sides, and the front and back both sides are baked. However, it is possible to eliminate burning spots in substantially the same manner.

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

  FIG. 1 is an external perspective view of the heating cooker according to the present embodiment. The heating cooker 1 is provided with an operation panel 11 at the upper part of the front surface of the rectangular parallelepiped cabinet 10, and a door 12 that rotates around the lower end side is provided below the operation panel 11 on the front surface of the cabinet 10. It is provided and roughly configured. A handle 13 is provided at the top of the door 12, and a heat-resistant glass window 14 is fitted into the door 12.

  FIG. 2 is an external perspective view of the heating cooker 1 with the door 12 opened. A rectangular parallelepiped heating chamber 20 is provided in the cabinet 10. The heating chamber 20 has an opening 20a on the front side facing the door 12, and the side surface, bottom surface and top surface of the heating chamber 20 are formed of stainless steel plates. The door 12 is formed of a stainless steel plate on the side facing the heating chamber 20. A heat insulating material (not shown) is placed around the heating chamber 20 and inside the door 12 to insulate the inside of the heating chamber 20 from the outside.

  Further, a stainless steel tray 21 is installed on the bottom surface of the heating chamber 20. Further, a stainless steel wire rack 24 (see FIG. 3) for placing an object to be heated is laid between both side surfaces of the heating chamber 20. Further, a substantially rectangular side surface steam outlet 22 (only one is visible in FIG. 2) extending substantially horizontally is provided below the middle stage on both side surfaces of the heating chamber 20.

  FIG. 3 is a schematic configuration diagram showing a basic configuration of the heating cooker 1. As shown in FIG. 3, the heating cooker 1 includes a heating chamber 20, a water tank 30 that stores steam water, and a steam generator 40 that generates steam by evaporating water supplied from the water tank 30. And a steam heating chamber 50 for heating the steam from the steam generator 40, and a control device 80 for controlling operations of the steam generator 40, the steam heating chamber 50, and the like.

  A grid-like rack 24 with legs is laid above the tray 21 installed in the heating chamber 20 and between both side surfaces of the heating chamber 20. A heated object 90 is placed.

  The connecting portion 30 a provided on the lower side of the water tank 30 can be connected to a funnel-shaped receiving port 31 a provided at one end of the first water supply pipe 31. The suction side of the pump 35 is connected to the end of the second water supply pipe 32 that branches from the first water supply pipe 31 and extends upward, and one end of the third water supply pipe 33 is connected to the discharge side of the pump 35. ing. Further, a water tank water level sensor 36 is disposed at the upper end of a water level sensor pipe 38 that branches off from the first water supply pipe 31 and extends upward. Furthermore, the upper end of an air release pipe 37 branched from the first water supply pipe 31 and extending upward is connected to an exhaust duct 65 described later.

  The third water supply pipe 33 has an L shape that is bent substantially horizontally from a vertically disposed portion, and an auxiliary tank 39 is connected to the other end of the third water supply pipe 33. Furthermore, one end of the fourth water supply pipe 34 is connected to the lower end of the auxiliary tank 39, and the lower end of the steam generator 40 is connected to the other end of the fourth water supply pipe 34. Further, one end of the drain valve 70 is connected to a lower side than the connection point of the fourth water supply pipe 34 in the steam generator 40. One end of a drain pipe 71 is connected to the other end of the drain valve 70, and a drain tank 72 is connected to the other end of the drain pipe 71. Note that the upper portion of the auxiliary tank 39 is communicated with the atmosphere via the air release pipe 37 and the exhaust duct 65.

  When the water tank 30 is connected to the receiving port 31 a of the first water supply pipe 31, the water in the water tank 30 rises into the air release pipe 37 until the water level becomes the same as that of the water tank 30. At this time, the water level sensor pipe 38 connected to the water tank water level sensor 36 is sealed at the tip, so that the water level does not rise. However, according to the water level of the water tank 30, the water level sensor pipe 38 has a sealed space. The pressure rises from atmospheric pressure. By detecting this pressure change with a pressure detection element (not shown) in the water level sensor 36 for water tank, the water level in the water tank 30 is detected. In the water level measurement when the pump 35 is stationary, the air release pipe 37 is not necessary, but the suction pressure of the pump 35 directly acts on the pressure detection element, and the accuracy of the water level detection of the water tank 30 decreases. In order to prevent this, an air release pipe 37 having an open end is provided.

  The steam generator 40 includes a pot 41 having the other end of the fourth water supply pipe 34 connected to the lower side, a steam generating heater 42 disposed near the bottom surface of the pot 41, and steam generation in the pot 41. A water level sensor 43 disposed in the vicinity of the upper side of the heater 42 and a steam suction ejector 44 attached to the upper side of the pot 41 are provided. A fan casing 26 is disposed outside the suction port 25 provided at the upper side of the heating chamber 20. Then, the steam in the heating chamber 20 is sucked from the suction port 25 by the blower fan 28 installed in the fan casing 26, and the steam suction ejector of the steam generating device 40 through the first pipe 61 and the second pipe 62. 44 is sent to the inlet side. One end of the first pipe 61 is connected to the fan casing 26. The second pipe 62 has one end connected to the other end of the first pipe 61 and the other end connected to the inlet side of the inner nozzle 45 of the vapor suction ejector 44.

  The steam suction ejector 44 includes an outer nozzle 46 that wraps the outside of the inner nozzle 45, and the discharge side of the inner nozzle 45 communicates with the internal space of the pot 41. One end of the third pipe 63 is connected to the discharge side of the outer nozzle 46 of the steam suction ejector 44, and the steam heating chamber 50 is connected to the other end of the third pipe 63.

  The fan casing 26, the first pipe 61, the second pipe 62, the steam suction ejector 44, the third pipe 63, and the steam heating chamber 50 form an external circulation path 60. One end of a discharge passage 64 is connected to the discharge port 27 provided on the lower side of the side surface of the heating chamber 20, and one end of an exhaust duct 65 is connected to the other end of the discharge passage 64. Further, an exhaust port 66 is provided at the other end of the exhaust duct 65. On the exhaust duct 65 side of the vapor discharge passage 64, a radiator 69 is externally fitted. An exhaust duct 65 is connected to a connection portion between the first pipe 61 and the second pipe 62 forming the external circulation path 60 via an exhaust passage 67. Further, a damper 68 that opens and closes the exhaust passage 67 is disposed on the connection side of the first and second pipes 61 and 62 in the exhaust passage 67.

  The steam heating chamber 50 is a dish-shaped case 51 disposed on the ceiling side of the heating chamber 20 and substantially in the center with the opening facing down, and a first mold disposed in the dish-shaped case 51. A steam heater 52 and a second steam heater 53 arranged in the dish-shaped case 51 are provided. The bottom surface of the dish-shaped case 51 is formed by a metal ceiling panel 54 provided on the ceiling surface of the heating chamber 20. A plurality of ceiling steam outlets 55 are formed in the ceiling panel 54. Here, the upper and lower surfaces of the ceiling panel 54 are finished in a dark color by painting or the like. Note that the ceiling panel 54 may be formed of a metal material that changes to a dark color by repeated use or a dark-colored ceramic molded product.

  Furthermore, the steam heating chamber 50 is connected to the upper portion of the heating chamber 20 at one end of a steam supply passage 23 (only one is visible in FIG. 3) extending toward the left and right sides. The steam supply passage 23 extends downward along both side surfaces of the heating chamber 20, and the other end is connected to a side surface steam outlet 22 provided on the lower side of the middle stage portion on both side surfaces of the heating chamber 20. It is connected.

  Next, the control system of the heating cooker 1 will be described.

  The control device 80 includes a microcomputer, an input / output circuit, and the like, and as shown in FIG. 4, the blower fan 28, the first steam heater 52, the second steam heater 53, the damper 68, and the drain valve. 70, the steam generating heater 42, the operation panel 11, the water tank water level sensor 36, the water level sensor 43, the temperature sensor 81 for detecting the temperature in the heating chamber 20 (shown in FIG. 3), and the heating chamber 20 A humidity sensor 82 for detecting the humidity inside the pump and the pump 35 are connected. Based on the detection signals from the water tank water level sensor 36, the water level sensor 43, the temperature sensor 81, and the humidity sensor 82, the blower fan 28, the first steam heater 52, the second steam heater 53, the damper 68, the waste water. The valve 70, the steam generating heater 42, the operation panel 11 and the pump 35 are controlled according to a predetermined program.

  Hereinafter, the basic operation of performing the one-stage heating cooking in the lower stage by the heating cooker 1 having the above configuration will be described with reference to FIGS. 3 and 4. When a power switch (not shown) of the operation panel 11 is pressed, the power is turned on, and the cooking operation is started by operating the operation panel 11. Then, first, the control device 80 closes the drain valve 70 and starts the operation of the pump 35 with the exhaust passage 67 closed by the damper 68. Then, water is supplied from the water tank 30 into the pot 41 of the steam generator 40 via the first to fourth water supply pipes 31 to 34 by the pump 35. Thereafter, when the water level sensor 43 detects that the water level in the pot 41 has reached a predetermined water level, the pump 35 is stopped to stop water supply.

  Next, the steam generating heater 42 is energized, and a predetermined amount of water accumulated in the pot 41 is heated by the steam generating heater 42.

  When the steam generating heater 42 is energized or when the temperature of the water in the pot 41 reaches a predetermined temperature, the blower fan 28 is turned on and the first and second steam heaters 52 in the steam heating chamber 50 are turned on. , 53 are energized. Then, the blower fan 28 sucks air (including steam) in the heating chamber 20 from the suction port 25 and sends out air (including steam) to the external circulation path 60. In that case, since the centrifugal fan is used for the ventilation fan 28, a high pressure can be generated compared with the case where a propeller fan is used. Furthermore, by rotating the centrifugal fan used for the blower fan 28 at a high speed with a DC motor, the flow velocity of the circulating airflow can be extremely increased.

  Next, when the water in the pot 41 of the steam generator 40 boils, saturated steam is generated, and the generated saturated steam joins the circulating airflow passing through the external circulation path 60 at the location of the steam suction ejector 44. Then, the steam discharged from the steam suction ejector 44 flows into the steam heating chamber 50 through the third pipe 63 at a high speed.

  The steam that has flowed into the steam heating chamber 50 is heated by the first and second steam heaters 52 and 53 to become superheated steam at approximately 300 ° C. (depending on the cooking contents). A part of this superheated steam is ejected downward from the plurality of ceiling steam outlets 55 provided in the lower ceiling panel 54 in the heating chamber 20. In addition, another part of the superheated steam is supplied from the side surface steam outlet 22 disposed below the interruption portion on both side surfaces of the heating chamber 20 via the steam supply passages 23 provided on the left and right sides of the steam heating chamber 50. Erupted.

  Thus, the superheated steam ejected from the ceiling side of the heating chamber 20 is vigorously supplied toward the heated object 90 side in the center. At the same time, the superheated steam ejected from the upper side of the rack 24 on the left and right side surfaces of the heating chamber 20 is supplied while rising from the side of the heated object 90 so as to wrap the heated object 90. As a result, in the heating chamber 20, convection occurs in such a manner that it blows down at the center and rises outside thereof. Then, the convection steam is sequentially sucked into the suction port 25 and repeatedly circulates through the external circulation path 60 and returns to the heating chamber 20 again.

  In this way, by forming a convection of superheated steam in the heating chamber 20, the superheated steam from the steam heating chamber 50 is blown to the ceiling steam while the temperature and humidity distribution in the heating chamber 20 is kept uniform. It is possible to eject the gas from the outlet 55 and the side outlet 22 and to efficiently collide with the heated object 90 placed on the rack 24, and the heated object 90 is heated by the collision of the superheated steam. In that case, the superheated steam that has contacted the surface of the object to be heated 90 also heats the object to be heated 90 by releasing latent heat when the surface of the object to be heated 90 is condensed. As a result, a large amount of heat of the superheated steam can be reliably and promptly applied to the entire surface of the article 90 to be heated. Therefore, it is possible to realize high-speed cooking with no spots and good finish.

  In addition, when the time elapses during the cooking operation, the amount of steam in the heating chamber 20 increases, and the surplus amount of steam passes from the discharge port 27 through the discharge passage 64 and the exhaust duct 65. And discharged from the exhaust port 66 to the outside. At that time, the steam passing through the discharge passage 64 is cooled and condensed by the radiator 69 provided in the discharge passage 64, thereby preventing the steam from being discharged to the outside as it is. The water condensed in the discharge passage 64 by the radiator 69 flows down in the discharge passage 64 and is guided to the receiving tray 21, and is processed together with the water generated by cooking after the cooking.

  After cooking, the control device 80 displays a cooking end message on the operation panel 11, and a buzzer (not shown) provided on the operation panel 11 sounds a signal. When a user who knows the end of cooking by these messages and buzzer opens the door 12, the control device 80 detects that the door 12 has been opened by a sensor (not shown) and opens the damper 68 of the exhaust passage 67. Open instantly. Then, the first pipe 61 of the external circulation path 60 communicates with the exhaust duct 65 via the exhaust passage 67, and the steam in the heating chamber 20 is blown by the blower fan 28 through the suction port 25, the first pipe 61, and the exhaust passage 67. And is discharged from the exhaust port 66 through the exhaust duct 65. This damper operation functions similarly even if the user opens the door 12 during cooking. Therefore, the user can safely take out the object 90 to be heated from the heating chamber 20 without being exposed to steam.

  Hereinafter, the configuration in the case of performing the two-stage heating cooking in accordance with the basic operation described above, in particular with respect to the basic configuration shown in FIGS.

  FIG. 5 is a longitudinal sectional view as seen from the back side of the heating chamber 20. The steam heating chamber 50 placed on the heating chamber 20 includes a first steam heater which is a sheathed heater having a large pipe diameter with a large electric power (1000 W) in a dish-shaped case 51 having a substantially rectangular recess 51a. 52 and a second steam heater 53 are arranged. Further, although not shown in FIG. 5, the opening of the recess 51 a of the dish-shaped case 51 is covered with a metal ceiling panel 54 provided on the ceiling surface of the heating chamber 20.

  Steam supply pipes 94A, 94B, 94C are connected to the side wall 91 of the dish-shaped case 51. The side wall 91 side to which the steam supply pipes 94A, 94B, 94C are connected is the back side of the main heating cooker 1, and the steam supply pipes 94A, 94B, 94C are as shown in FIG. 1 is connected to the steam suction ejector 44 provided on the back side of the heating chamber 20 via three third pipes 63. Further, a steam outlet is provided in each of the side walls 92 and 93 which are adjacent to the side wall 91 and opposed to each other in the dish-shaped case 51, and the steam supply passage 23 shown in FIG. 3 is connected thereto.

  Here, four steam supply passages 23A1 to 23A4 (represented by 23A in FIG. 5) are connected to the four steam outlets provided on the side wall 92 of the dish-shaped case 51. . On the other hand, four steam supply passages 23B1 to 23B4 (represented by 23B in FIG. 5) are connected to the four steam outlets provided in the side wall 93 of the dish-shaped case 51.

  One steam blow-off section that receives steam from the four steam supply passages 23A1 to 23A4 and changes the flow direction in the horizontal direction and blows it into the heating chamber 20 at a position below the middle stage in the side wall 96 of the heating chamber 20 101 is provided, and one side surface steam outlet 22 (not shown in FIG. 5) is formed at the position of the steam outlet 101 on the side wall 96 of the heating chamber 20. The steam supply passages 23 </ b> A <b> 1 to 23 </ b> A <b> 4 connected to the steam outlet provided in the side wall 92 of the dish-shaped case 51 extend horizontally along the ceiling panel 54 of the heating chamber 20, and then along the side wall 96. It extends vertically and is connected to the steam outlet 101.

  Similarly, in the side wall 97 facing the side wall 96 of the heating chamber 20, one steam blowing portion 102 is provided at a position below the middle stage in the side wall 97, and the position of the steam blowing portion 102 in the side wall 97 is located at the position. One side steam outlet 22 (not shown in FIG. 5) is formed. Further, the steam supply passages 23 </ b> B <b> 1 to 23 </ b> B <b> 4 connected to the side wall 93 of the dish-shaped case 51 are connected to the steam outlet 102.

  Locking portions 103 and 104 for laying a stainless steel tray 107 as the first object to be heated are disposed slightly above the steam blowing portions 101 and 102 in the side walls 96 and 97 of the heating chamber 20. Two opposite sides of the tray 107 are placed on the upper surface thereof. Therefore, the tray 107 can be taken out of the heating chamber 20 by lifting the laid tray 107 and pulling it forward.

  In that case, since the tray 107 is laid in the middle in the vertical direction on the side walls 96 and 97 of the heating chamber 20, an object to be heated placed on the tray 107 is formed on the ceiling panel 54 of the heating chamber 20. It arrange | positions in the position close | similar to the several ceiling steam blower outlet 55 made. Furthermore, since the tray 107 is laid slightly above the steam blowing portions 101 and 102 provided on the side walls 96 and 97 of the heating chamber 20, the object to be heated placed on the tray 107 is side steam. It arrange | positions rather than the blower outlet 22. FIG. Therefore, the object to be heated is lower than the superheated steam ejected downward from the plurality of ceiling steam outlets 55 formed in the ceiling panel 54 of the heating chamber 20 and the tray 107 on the left and right side surfaces of the heating chamber 20. By the superheated steam jetted obliquely upward from the side surface steam outlet 22 located on the side, the food is efficiently cooked at high speed.

  In addition, the lower portions of the side walls 96 and 97 of the heating chamber 20 below the steam blowing portions 101 and 102 are horizontally provided with locking portions 105 and 106 for laying the tray 21, Two opposite sides of the rectangular tray 21 are placed on the upper surface. On the tray 21, a rectangular rack 24 is placed as a second material to be heated to be heated, which is formed in a lattice shape with a stainless steel wire. In this way, drops containing oil, moisture, salt, etc. dripping from the heated object 90 on the heated rack 24 can be reliably received by the tray 21.

  FIG. 6 is a three-side view of the steam supply passages 23B1 to 23B4 and the steam outlet 102. 6 (a) is a front view as seen from the opening side of the steam outlet 102, and FIG. 6 (b) is a cross-sectional view taken along the line AA 'in FIG. 6 (a). ) Is a cross-sectional view taken along line BB ′ of FIG. FIG. 7 is an enlarged view of the steam outlet 102 in FIG. Hereinafter, the steam supply passages 23B1 to 23B4 and the steam outlet 102 will be described with reference to FIGS. 6 and 7, but the same applies to the steam supply passages 23A1 to 23A4 and the steam outlet 101.

  The steam blowout portion 102 has a substantially right-angled triangular cross section. Then, one of the two sides sandwiching the right angle of the right triangle is opened to form a steam outlet 108, and the top plate 109 forming the other side is provided with four steam supply holes. Each steam supply hole is connected to the tip of steam supply passages 23A1 to 23A4. The inclined plate 110 that forms the long side of the right triangle is inclined so as to face the steam outlet 108 and the top plate 109, and the direction of steam from the steam supply passages 23B1 to 23B4 is directed to the steam outlet 108. It has a function to change the direction.

  In addition, at four positions located directly below the steam supply passages 23B1 to 23B4 below the inclined plate 110, the cross-section having a reflecting surface directed slightly upward in the horizontal direction has a "<" shape. 4 are attached. The steam that flows obliquely downward along the inclined plate 110 is blown upward with respect to the horizontal direction by the reflecting surface 111a of the blowing plate 111.

  That is, in this embodiment, the blowing direction separating means is constituted by the blowing plate 111.

  Steam is very fine and has a heavy weight. Therefore, inertia force acts on the steam blown from the steam outlet of the steam heating chamber 50 to the steam supply passages 23B1 to 23B4, and the steam follows the outer wall surface and the inclined plate 110 in the steam supply passages 23B1 to 23B4. Flow down. Therefore, as shown by arrows (a) in FIGS. 6 (a) and 7, the steam flowing straight downward along the inclined plate 110 after being blown out from the steam supply passages 23B1 to 23B4 is blown up. It is blown upward by the reflecting surface 111a of 111. Moreover, as shown by the arrow (b), after being blown out from the steam supply passages 23B1 to 23B4, the steam flowing toward the front (door 12 side) along the inclined plate 110 passes through the blowing plate 111, It will be blown out downward and forward. Similarly, as shown by the arrow (c), the steam flowing backward along the inclined plate 110 after being blown out from the steam supply passages 23B1 to 23B4 passes through the blow-up plate 111 and is directly downward and rearward. Will be blown out.

  Then, the steam blown up from the left and right steam blowing portions 101 and 102 as shown by the arrow (a) from the lower side toward the upper tray 107 laid slightly above the steam blowing portions 101 and 102. I will win. Therefore, the object to be heated on the upper tray 107 is heated almost uniformly by the superheated steam from the steam blowing parts 101 and 102 and the superheated steam blown downward from the ceiling steam blower outlet 55 of the heating chamber 20. It is cooked.

  On the other hand, the steam blown obliquely downward as indicated by the arrows (b) and (c) from the left and right steam blowing portions 101, 102 is in the lower stage laid slightly below the steam blowing portions 101, 102. The entire object to be heated 90 placed on the rack 24 is wrapped. In this case, among the superheated steam blown from the steam supply passages 23B1 to 23B4, the amount of superheated steam blown obliquely downward as indicated by arrows (b) and (c) is blown up as indicated by arrow (a). More than the amount of superheated steam produced. Therefore, when the superheated steam blown downward from the ceiling steam outlet 55 is taken into account, the amount of superheated steam that heats the heated object on the upper tray 107 and the heated object 90 on the lower rack 24 are heated. There is no imbalance between the amount of superheated steam that is generated.

  As described above, in the present embodiment, the steam from the steam supply passages 23A1 to 23A4 and 23B1 to 23B4 is received in the horizontal lower positions of the side walls 96 and 97 of the heating chamber 20 in the horizontal direction. Steam blowing portions 101 and 102 for blowing the air into the heating chamber 20 by changing the direction are provided. And in the position which faces the steam blower outlet 108 and the top plate 109 in each steam blow-out part 102, the inclination board which has the inclination which changes the direction of the steam from steam supply passage 23B1-23B4 toward the steam blower outlet 108 110, and four blowing plates 111 each having a reflecting surface 111a directed slightly upward in the horizontal direction are arranged at four positions located directly below the steam supply passages 23B1 to 23B4 below the inclined plate 110. .

  The steam that flows obliquely downward along the inclined plate 110 is blown up by the reflecting surface 111 a of the blowing plate 111. Further, the steam flowing toward the front (door 12 side) and the rear of the blowing plate 111 along the inclined plate 110 is blown out toward the lower front and lower rear as it is. Therefore, the superheated steam blown up and hits the upper tray 107 together with the superheated steam blown downward from the ceiling steam outlet 55 of the heating chamber 20 together with the heated object placed on the tray 107 from both the upper and lower sides. It can be cooked uniformly. Further, the whole heated object 90 placed on the lower rack 24 can be wrapped and cooked by the superheated steam blown downward.

  Therefore, during the upper and lower two-stage cooking, the upper and lower heated objects 90 and the lower heated object 90 have substantially the same baking on both upper and lower surfaces, and no spots are generated.

  In the present embodiment, the blowing plate 111 is formed separately from the inclined plate 110 and attached to the inclined plate 110. However, the structure is not limited to the above structure, and the blowing plate 111 may be configured by projecting the installation region of the blowing plate 111 in the inclined plate 110 in a mountain shape toward the inside.

  FIG. 8 is a three-view diagram relating to another embodiment of the steam supply passages 23B1 to 23B4 and the steam outlet 102. 8 (a) is a front view seen from the opening side of the steam outlet 102, and FIG. 8 (b) is a cross-sectional view taken along the line CC ′ of FIG. 8 (8). ) Is a cross-sectional view taken along the line DD ′ of FIG. FIG. 9 is an enlarged view of the steam outlet 102 in FIG. Hereinafter, the steam supply passages 23B1 to 23B4 and the steam outlet 102 will be described with reference to FIGS. 8 and 9, but the same applies to the steam supply passages 23A1 to 23A4 and the steam outlet 101.

  Hereinafter, the same components as those in FIGS. 6 and 7 are denoted by the same reference numerals, and detailed description thereof is omitted. In the present embodiment, the steam outlet 108 is closed by a steam outlet plate 116 as the outlet direction separating means provided with the punching hole 115. In the steam outlet 102 shown in FIGS. 6 and 7, the heating chamber 20 side is simply opened by the steam outlet 108. Therefore, although the steam that flows obliquely downward along the inclined plate 110 is blown upward and downward by the reflecting surface 111a of the blow-up plate 111, the upward and downward steam is clearly blown out. There is no distinction and the separation in both directions is ambiguous.

  Therefore, in the present embodiment, the steam outlet 108 is closed by the steam outlet plate 116. The steam blower plate 116 includes a first punching hole row 117 composed of a plurality of punching holes 115 arranged in the horizontal direction at an intermediate portion in the vertical direction of the steam blower outlet 108, and a lower portion of the first punching hole row 117. A second punching hole row 118 including a plurality of punching holes 115 arranged in the horizontal direction is provided in a region excluding the region directly below the steam supply passages 23B1 to 23B4 on the side. Here, a predetermined interval is provided between the first punching hole row 117 and the second punching hole row 118. That is, in the present embodiment, the first opening is constituted by the first punching hole row 117, and the second opening is constituted by the second punching hole row 118.

  At that time, the folding 120 provided at the edge of the top plate 109 in the steam blowing section 102 meshes with the folding 122 provided at the edge of the side surface steam outlet 22 in the side wall 97 of the heating chamber 20. By inserting the edge portion 116a of the steam blowing plate 116 between the turn 122 and the edge portion of the top plate 109, the edge portion of the top plate 109 and the edge portion of the side surface steam outlet 22 are caulked. The blowing plate 116 is attached to the top plate 109 and the side wall 97. Similarly, the turn-up 121 provided at the edge of the inclined plate 110 in the steam outlet 102 and the turn-up 123 provided at the edge of the side surface steam outlet 22 in the side wall 97 mesh with each other. The edge 116a of the steam blowing plate 116 is inserted between the edge of 110 and the edge of the inclined plate 110 and the edge of the side surface steam outlet 22 are caulked so that the steam blowing plate 116 is inclined. 110 and the side wall 97.

  Further, in the region directly below the steam supply passages 23B1 to 23B4 on the lower side of the first punching hole row 117 of the steam blowing plate 116, there are two surfaces formed by bending the metal plate into an “L” cross section. One surface of the blowing plate 119 is attached and fixed to the region.

  By doing so, as shown by an arrow (d) in FIG. 9, the steam flowing straight downward along the inclined plate 110 after being blown out from the steam supply passages 23 </ b> B <b> 1 to 23 </ b> B <b> 4 in the blowing plate 119 It is blown upward by the reflecting surface 119a which is another surface. Further, as indicated by arrows (e) and (f), the steam flowing forward (door 12 side) and rearward along the inclined plate 110 after being blown out from the steam supply passages 23B1 to 23B4 is blown up. It passes through 119 and is blown out downward and forward as it is.

  At this time, as described above, a predetermined gap is provided between the upper first punching hole row 117 and the lower second punching hole row 118 in the steam blowing plate 116. Further, the reflecting surface 119a of the blow-up plate 119 is disposed at the same position as the uppermost row in the second punching hole row 118 in the lower stage. Therefore, a predetermined gap is provided between the reflective surface 119a of the blowup plate 119 and the first punching hole row 117 in the upper stage, and among the superheated steam reflected by the reflective surface 119a of the blowup plate 119, Only the superheated steam blown up toward the one punching hole row 117 is blown out from the first punching hole row 117 into the heating chamber 20. On the other hand, only the superheated steam blown toward the second punching hole row 118 from the second punching hole row 118 into the heating chamber 20 out of the superheated steam that passes through the blowing plate 119 and blows downward as it is. Be blown out.

  Therefore, the steam flowing obliquely downward along the inclined plate 110 can be reliably blown upward and downward and blown into the heating chamber 20.

  In the present embodiment, the steam blowing plate 116 provided with the upper first punching hole row 117 and the lower second punching hole row 118 is used. However, the present invention is not limited to this, and instead of the upper first punching hole row 117 and the lower second punching hole row 118, an upper first slit and a lower second slit are provided. It is also possible to use a steam blowing plate.

  In each of the above-described embodiments, the blowing plates 111 and 119 are provided on the inclined plate 110 in the steam blowing portions 101 and 102, and the superheated steam flowing along the inclined plate 110 is blown upward, downward, forward, and downwardly rearward. I try to divide it. However, the method of blowing the superheated steam upward, downwardly forward, and downwardly rearward in the present invention is not limited to the above method. In short, when the superheated steam is blown out from the tips of the steam supply passages 23A1 to 23A4, 23B1 to 23B4, the blowing direction of the superheated steam may be divided into upper, lower front, and lower rear.

  10 and 11, superheated steam is blown out from the front ends of the steam supply passages 23A1 to 23A4 and 23B1 to 23B4 in the steam blowing portions 101 and 102 by dividing the blowing direction into upper, lower front, and lower rear. An example of the method is shown. However, in FIG. 10 and FIG. 11, the steam supply passage 23B1 will be described as a representative.

  In the present embodiment, the tip 131 of the steam supply passage 23B1 is inserted into the steam outlet 102 and bent toward the heating chamber 20 in the steam outlet 102. And while making the upper surface 132 of the front-end | tip part 131 warp upward, the lower surface 133 is extended below along the inclination board 110 of the steam blowing part 102, and is made into the trumpet shape as a whole. Further, a direction separating member 134 as the blowing direction separating means for separating the superheated steam from the steam supply passage 23B1 into an upper part, a lower front part, and a lower rear part is inserted into the tip part 131, and is attached and fixed. ing.

  The direction separating member 134 is inserted over the entire width of the distal end portion 131 and extends downward from an intermediate portion of the first separating member 135. The first separating member 135 divides the inside of the distal end portion 131 into an upper portion and a lower portion. Thus, the lower part in the tip part 131 is constituted by a second separating member 136 that divides the lower part into a front part (door 12 side) and a rear part. The first separation member 135 has a first surface 137 for blowing up the steam flowing obliquely downward and a second surface 138 for blowing the steam flowing obliquely downward as it is. , 139 and a wedge shape.

  In the above configuration, the superheated steam blown from the tip 131 of the steam supply passage 23B1 is blown upward by the upper surface 132 of the tip 131 and the first surface 137 of the first separation member 135. Further, the air is blown forward and downward by the lower surface 133 of the distal end portion 131, the second surface 138 of the first separation member 135, and the second separation member 136. In addition, the lower surface 133 of the tip 131, the second surface 139 of the first separation member 135, and the second separation member 136 blow out downward and rearward.

  Therefore, the superheated steam is blown out from the tip of each of the steam supply passages 23A1 to 23A4 and 23B1 to 23B4 in an upper part, a lower part forward, and a lower part rear. The shape of the direction separating member 134 is not limited to the shape shown in FIG. 11, and superheated steam is directed upward, downwardly forward, and downwardly rearward from the tips of the steam supply passages 23A1 to 23A4 and 23B1 to 23B4. Any shape that can be separated and blown out may be used.

  FIG. 12 shows another method of blowing superheated steam from the tips of the steam supply passages 23A1 to 23A4 and 23B1 to 23B4 by dividing the blowing direction into an upper direction, a lower front direction, and a lower rear direction. An example is shown. However, in FIG. 12, the steam supply passage 23B1 will be described as a representative.

  In the present embodiment, the front end portion 141 of the steam supply passage 23B1 is inserted into the steam blowing portion 102 and bent toward the heating chamber 20 in the steam blowing portion 102. Further, the tip portion 141 is divided into three passages in the steam blowing portion 102. The first passage 142, which is one of them, is located at the upper portion of the tip portion 141 and is warped upward. In addition, the second passage 143, which is one of the three passages, is located at the lower portion of the tip portion 141, and downward and forward (door 12 side) along the inclined plate 110 of the steam blowing portion 102. It extends to. The third passage 144, which is one of the three passages, is located below the tip portion 141, and extends downward and rearward along the inclined plate 110 of the steam blowing portion 102. Yes. In addition, between the 1st channel | path 142 curving upward and the 2nd, 3rd channel | path 143,144 extended below along the inclination board 110, it goes to a base end part from a front-end | tip part. A narrow wedge-shaped passage holding member 145 is disposed to hold the divided passages 142 to 144.

  In the above configuration, the superheated steam that has flowed through the steam supply passage 23B1 is blown upward by the first passage 142 of the tip portion 141. Further, it is blown out forward and downward by the second passage 143 of the tip portion 141. Further, it is blown out downward and rearward by the third passage 144 of the tip portion 141.

  That is, in this embodiment, the blowing direction separating means is constituted by the first passage 142, the second passage 143, and the third passage 144 of the tip portion 141.

  In each of the above embodiments, the case where the cooking device 1 is provided with the steam heating chamber 50 and can heat the article 90 to be heated by superheated steam from the steam heating chamber 50 will be described as an example. is doing. However, in the present invention, in the case of a heating cooker capable of switching between heating cooking using superheated steam and heating cooking using non-superheated steam, there is no steam heating chamber 50, and the object to be heated by non-superheated steam from the steam generator 40. Needless to say, the present invention can also be applied to the case of a heating cooker that heats.

  Further, in each of the above-described embodiments, the tray 107 is disposed as the first heated object holding material positioned in the upper stage during the two-stage cooking, and the rack 24 is used as the second heated object holding material positioned in the lower stage. Is arranged. However, the specific configuration of the first and second heated object holding materials is not limited to this.

  Moreover, in each said embodiment, the case where a vapor | steam is isolate | separated and blown off from the said vapor | steam blowing parts 101 and 102 in three directions, upper direction, the downward front, and the downward rear is demonstrated to the example. However, even when steam is blown out from the steam blowing portions 101 and 102 provided on both sides of the heating chamber 20 in two directions, upward and downward, the blown steam collides with each other at the center of the heating chamber 20. Therefore, convection can be generated. Therefore, in this case as well, the object to be heated in the heating chamber 20 can be heated substantially uniformly from the surroundings, and the burning on both the upper and lower surfaces can be made substantially the same to eliminate the burning spots.

  Moreover, in each said embodiment, the case where this invention is applied to a two-stage heating cooking is demonstrated to the example. However, since the steam blown upward, downward and forward and downward from the steam blowing portions 101 and 102 provided on both sides of the heating chamber 20 collide with each other in the central portion of the heating chamber 20, convection occurs. Even in the case of single-stage cooking using only the first heated object holding material or in the case of single-stage cooking using only the second heated object holding material, the first and second heated objects are held. The object to be heated on the material can be heated substantially uniformly from the surroundings, and the burning on both the upper and lower surfaces can be made substantially the same to eliminate the burning spots.

It is an external appearance perspective view in the heating cooker of this invention. It is an external appearance perspective view of the state which opened the door of the heating cooker shown in FIG. It is a schematic block diagram of the heating cooker shown in FIG. It is a control block diagram of the heating cooker shown in FIG. It is a longitudinal cross-sectional view of the heating chamber in FIG. It is a figure which shows the structure of the steam supply path in FIG. 5, and a steam blowing part. It is a cross-sectional enlarged view of the steam blowing part in FIG. It is a figure which shows the structure of the steam supply path and steam blowing part different from FIG. It is a cross-sectional enlarged view of the steam blowing part in FIG. It is sectional drawing of the front-end | tip part of the steam supply channel | path which divides a blowing direction into 3 directions. It is a perspective view of the front-end | tip part of the steam supply path shown in FIG. It is a perspective view of the front-end | tip part of the vapor | steam supply path different from FIG.

Explanation of symbols

1 ... Heat cooker,
20 ... heating chamber,
22 ... Side steam outlet,
23A, 23B ... steam supply passage,
24 ... Rack,
40 ... steam generator,
44 ... Vapor suction ejector,
50 ... Steam heating chamber,
55 ... Ceiling steam outlet,
101, 102 ... steam outlet,
108: Steam outlet,
110 ... inclined plate,
111,119 ... windup board,
111a, 119a ... reflective surface,
116 ... steam blowing plate,
117 ... 1st punching hole row,
118 ... second punching hole array,
131, 141 ... the tip of the steam supply passage,
132 ... the top surface of the tip,
133 ... the lower surface of the tip,
134 ... direction separation member,
135 ... first separation member,
136 ... the second separation member,
137 ... the first surface of the first separating member,
138, 139 ... the second surface of the first separating member,
142 ... the first passage,
143 ... second passage,
144: Third passage.

Claims (8)

A steam generator for generating steam;
A heating chamber for heating an object to be heated by steam supplied from the steam generator;
A steam outlet provided on both side walls of the heating chamber, and having a steam outlet for blowing steam supplied from the steam generator toward the heating chamber;
A steam supply passage for supplying steam from the steam generator to the steam outlet,
The steam cooker according to claim 1, wherein the steam blowing section includes blowing direction separating means for separating the blowing direction of the steam supplied from the steam supply passage into at least two directions of upper and lower directions. The heating cooker according to claim 1, wherein
The above-mentioned blowing direction separating means separates the blowing direction of the steam supplied from the above-mentioned steam supply passage into three directions, upper, lower front, and lower rear. The heating cooker according to claim 1, wherein
The ceiling panel is provided on the top surface of the heating chamber and provided with a plurality of ceiling steam outlets for blowing out steam supplied from the steam generator downward,
A first heated object holding material for holding the first heated object is disposed in the middle in the vertical direction of the heating chamber, while a second heated material is disposed in the lower vertical direction of the heating chamber. A second object-to-be-heated holding material for holding an object is disposed;
The steam cooker, wherein the steam blowing section is disposed below the first heated object holding material and above the second heated object holding material. The cooking device according to claim 2,
The steam outlet is
The top plate in which the steam supply passage is connected and the steam supply hole communicating with the steam supply passage is formed;
Inclined so as to face the top plate and the steam outlet, and includes an inclined plate that changes the direction of the flow of steam from the steam supply hole to the direction toward the steam outlet,
The blowing direction separating means is disposed immediately below the steam supply passage in the inclined plate of the steam blowing portion, and reflects the steam flowing down along the inclined plate so as to be directed upward in the horizontal direction. A heating cooker comprising a blowing plate having a reflecting surface. The cooking device according to claim 4, wherein
The blowing direction separating means closes the steam outlet and is provided below the first opening and the reflecting surface provided at a predetermined distance above the reflecting surface of the blowing plate. A cooking device comprising a steam blower plate formed with a second opening. The cooking device according to claim 5,
The cooking device according to claim 1, wherein the first opening and the second opening in the steam blowing plate are configured by an array of a plurality of holes. The cooking device according to claim 2,
A front end portion of the steam supply passage is inserted into the steam blowing portion and bent toward the heating chamber in the steam blowing portion,
The blowing direction separating means includes a direction separating member that is inserted into the tip portion of the steam supply passage and separates the steam blown from the tip portion into three directions of upper, lower front, and lower rear. A cooking device characterized by. The cooking device according to claim 2,
A front end portion of the steam supply passage is inserted into the steam blowing portion and bent toward the heating chamber in the steam blowing portion,
The blowing direction separating means is formed by dividing the tip portion of the steam supply passage, and has a first passage extending upward and a second passage extending downward and forward. A cooking device comprising a passage and a third passage extending downward and rearward.

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